Cuneane

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Cuneane

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Molar mass	Template:Chem molar mass
Density	1.578 g/ml

Cuneane (Template:Ety) is a saturated hydrocarbon with the formula Template:Chem2 and a 3D structure resembling a wedge, hence the name. Cuneane may be produced from cubane by metal-ion-catalyzed σ-bond rearrangement. Similar reactions are known for Template:Chem name (Template:Chem2) and bishomocubane (Template:Chem2).

File:CubaneToCun.png

Synthesis of cuneane from cubane

Molecular geometry

The carbon atoms in the cuneane molecule form a hexahedron with point group C_2v. The cuneane molecule has three kinds of equivalent carbon atoms (A, B, C), which have also been confirmed by NMR. The molecular graph of the carbon skeleton of cuneane is a regular graph with non-equivalent groups of vertices, and so it is a very important test object for different algorithms of mathematical chemistry.

File:Cuneane 2D.svg

Equivalent carbon atoms in cuneane

Derivatives

Some cuneane derivatives have liquid crystal properties.